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  • Aparna Patil

Design of Large-Displacement Compliant Joints

Updated: Mar 30


Large displacement compliant joints

Flexure joints are widely used to approximate the function of traditional mechanical joints, while offering the benefits of high precision, long life, and ease of manufacture.


Drawbacks of typical flexure connectors and presents several new designs for highly effective, kinematically well-behaved compliant joints. A revolute and a translational compliant joint are proposed, both of which offer great improvements over existing flexures in the qualities of

  1. a large range of motion,

  2. minimal “axis drift,”

  3. increased off-axis stiffness, and

  4. a reduced stress-concentration


Analytic stiffness equations are developed for each joint and parametric computer models are used to verify their superior stiffness properties.


Revolute & Translational Joint

Large-displacement compliant joints eliminate the presence of friction, backlash, and wear. Further benefits include up to sub-micron accuracy due to their continuous monolithic construction.


The new compliant joint designs surpass the range of motion of many conventional flexure joints, while the combined achievements in off-axis stiffness ratio and zero axis drift make them very competitive with the latest advances in flexures.


To get more insights of the compliant mechanisms, schedule your appointment with us today.







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